A New LFM-Signal Detector Based on Fractional Fourier Transform. (12th July 2010)

• Record Type: Journal Article
• Authors: Yin Yin, Zhiping Zhiping; Chen Chen, Weidong Weidong
• Other Names: Durak Durak Lutfiye Lutfiye Academic Editor.
• Is Part Of: EURASIP journal on advances in signal processing. Volume 2010(2010)
• Publication Date: 2010-07-12
• Subjects: Signal processing -- Periodicals; Traitement du signal; Signal processing; Periodicals; 621.3822
• DOI: 10.1155/2010/876282
• Languages: English
• ISSNs: 1687-6172

Abstract

Abstract : A new LFM-signal detector formulated by the integration of the 4th-power modulus of the fractional Fourier transform is proposed. It has similar performance to the modulus square detector of Radon-ambiguity transform because of the equivalence relationship between them. But the new detector has much lower computational complexity in the case that the number of the searching angles is far less than the length of the signal. Moreover, it is proved that the new detector can be generalized to the integration of the n th-power (2 < n ) modulus of the fractional Fourier transform via mathematical derivation. Computer simulation results have confirmed the effectiveness of the proposed detector in LFM-signal detection.